Example usage for com.google.gwt.user.client.ui PopupPanel getPopupTop

Introduction

In this page you can find the example usage for com.google.gwt.user.client.ui PopupPanel getPopupTop.

Prototype

public int getPopupTop() 

Source Link

Document

Gets the popup's top position relative to the browser's client area.

Usage

From source file:com.nitrous.gwt.earth.client.demo.ShimDemo.java

License:Apache License

/**
 * This is how to display a GWT PopupPanel over the top of the Google Earth
 * Plug-in using the 'shim' technique. The shim technique places an IFrame
 * in-front of the earth plug-in but behind the PopupPanel by configuring
 * the absolute position, size and z-index of the IFrame.
 *///from   w w  w.j a v a  2s  .c om
private void showPopupWindow() {

    // the HTML content to be rendered inside the PopupPanel
    HTML content = new HTML("<b>Window test</b><br>"
            + "This PopupPanel is visible since we have an IFrame (shim) between the PopupPanel and the Google Earth Plugin. "
            + "View source code <a href=\""
            + "http://code.google.com/p/gwt-earth-3/source/browse/trunk/src/com/nitrous/gwt/earth/client/demo/ShimDemo.java\""
            + " target=\"new\">here</a>");

    // configure the PopupPanel size and position
    final PopupPanel window = new PopupPanel(false, false);
    window.setTitle("Shim test");
    window.add(content);
    final int width = 300;
    final int height = 80;
    window.setSize(width + "px", height + "px");
    window.center();
    final int left = window.getPopupLeft();
    final int top = window.getPopupTop();

    // Configure the z-index of the PopupPanel HTML content so that it is rendered in-front of everything (highest z-index)
    content.getElement().setAttribute("style", "z-index: " + (Integer.MAX_VALUE) + ";" + " width: " + width
            + "px;" + " height: " + height + "px;");

    // PopupPanel is to be displayed immediately behind content (slightly lower z-index)
    window.getElement().setAttribute("style", "z-index: " + (Integer.MAX_VALUE - 1) + ";"
            + " position: absolute;" + " left: " + left + "px;" + " top: " + top + "px;");

    window.show();

    // Allow some time for the browser to render the window and then configure the IFrame shim
    Scheduler.get().scheduleDeferred(new ScheduledCommand() {
        @Override
        public void execute() {
            final IFrameElement iframe = Document.get().createIFrameElement();

            // Initialize the IFrame to be the same size and position as the
            // window but with a smaller z-index value.
            // The size of the IFrame is tweaked by +9px to allow the border of the PopupPanel to be rendered correctly.
            iframe.setAttribute("style",
                    "z-index: " + (Integer.MAX_VALUE - 2) + ";" + " width: " + (width + 9) + "px;" + " height: "
                            + (height + 9) + "px;" + " position: absolute;" + " left: " + left + "px;"
                            + " top: " + top + "px;");

            // add the IFrame to the document body
            Document.get().getBody().appendChild(iframe);

            // remove the IFrame when the PopupPanel is closed
            window.addCloseHandler(new CloseHandler<PopupPanel>() {
                @Override
                public void onClose(CloseEvent<PopupPanel> event) {
                    iframe.removeFromParent();
                }
            });
        }
    });
}

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From source file:org.openremote.manager.client.toast.PopupToastDisplay.java

License:Open Source License

protected void setRelativePosition(Collection<ToastPopupPanel> panels, ToastPopupPanel panel, int desiredLeft,
        int desiredTop, int originTop, int offsetHeight, int offsetWidth) {

    for (PopupPanel existingPanel : panels) {

        Rectangle existingRec = new Rectangle(
                new Point(existingPanel.getPopupLeft(), existingPanel.getPopupTop()),
                existingPanel.getOffsetWidth(), existingPanel.getOffsetHeight());

        Rectangle newRec = new Rectangle(new Point(desiredLeft, desiredTop), offsetWidth, offsetHeight);

        // Detect collision with existing panel in grid
        if (existingRec.isOverlapping(newRec)) {

            // Calculate new grid position
            int newTop = desiredTop - offsetHeight - MARGIN_BOTTOM_PIXEL;
            if (newTop < 0) {
                desiredTop = originTop;//from  w  w w . j a v  a 2s .  c  o m
                desiredLeft = desiredLeft - offsetWidth - MARGIN_RIGHT_PIXEL;
            } else {
                desiredTop = newTop;
            }
            // Recursive processing until a free slot in the grid is found
            setRelativePosition(panels, panel, desiredLeft, desiredTop, originTop, offsetHeight, offsetWidth);
            return;
        }
    }
    panel.setPopupPosition(desiredLeft, desiredTop);
}

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From source file:org.seamless.gwt.notify.client.PopupNotificationDisplay.java

License:Open Source License

protected void setRelativePosition(Collection<PopupMessagePanel> messagePanels, PopupMessagePanel messagePanel,
        int desiredLeft, int desiredTop, int originTop, int offsetHeight, int offsetWidth) {

    for (PopupPanel existingPanel : messagePanels) {

        Rectangle existingRec = new Rectangle(
                new Point(existingPanel.getPopupLeft(), existingPanel.getPopupTop()),
                existingPanel.getOffsetWidth(), existingPanel.getOffsetHeight());

        Rectangle newRec = new Rectangle(new Point(desiredLeft, desiredTop), offsetWidth, offsetHeight);

        // Detect collision with existing panel in grid
        if (existingRec.isOverlapping(newRec)) {

            // Calculate new grid position
            int newTop = desiredTop - offsetHeight - MARGIN_BOTTOM_PIXEL;
            if (newTop < 0) {
                desiredTop = originTop;//from w  w  w.  j  a va2s.  c  o m
                desiredLeft = desiredLeft - offsetWidth - MARGIN_RIGHT_PIXEL;
            } else {
                desiredTop = newTop;
            }
            // Recursive processing until a free slot in the grid is found
            setRelativePosition(messagePanels, messagePanel, desiredLeft, desiredTop, originTop, offsetHeight,
                    offsetWidth);
            return;
        }
    }
    messagePanel.setPopupPosition(desiredLeft, desiredTop);
}

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